YX5599
YX5599 (Republic Airways) is a multi-stop service on 15 routes, busiest Boston to Nashville. Of 652 departures recorded from October 2024 to July 2026, 81.1% left on time, according to the US BTS.
- On-time departures81.1%of 652 flights
- Average delay10.4 min
- July 202631▲ 3.3%vs July 2025
- Cancelled2.6%
- Legs flown under this number15
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 51 | 32 | ▼ 37.3% |
| February | 46 | 27 | ▼ 41.3% |
| March | 32 | 31 | ▼ 3.1% |
| April | 26 | 30 | ▲ 15.4% |
| May | 30 | 31 | ▲ 3.3% |
| June | 30 | 30 | 0.0% |
| July | 30 | 31 | ▲ 3.3% |
| August | 9 | – | – |
| September | 21 | – | – |
| October | 31 | – | in progress |
| November | 28 | – | – |
| December | 34 | – | – |
| Year to date (Jan–Jul) | 245 | 212 | ▼ 13.5% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 92.2% | 83.3% | ▼ 9.6% |
| February | 87.0% | 80.0% | ▼ 8.0% |
| March | 84.4% | 83.3% | ▼ 1.2% |
| April | 80.8% | 53.3% | ▼ 34.0% |
| May | 66.7% | 86.7% | ▲ 30.0% |
| June | 50.0% | 96.7% | ▲ 93.3% |
| July | 55.2% | 86.2% | ▲ 56.3% |
| August | 88.9% | – | – |
| September | 81.0% | – | – |
| October | 83.3% | – | in progress |
| November | 95.8% | – | – |
| December | 75.8% | – | – |
| Year-to-date average (Jan–Jul) | 73.7% | 81.4% | ▲ 10.4% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 2 | – |
| February | 0 | 2 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 2 | 0 | ▼ 100.0% |
| July | 1 | 2 | ▲ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 4 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 3 | 8 | ▲ 166.7% |
according to the US BTS · October 2024 → July 2026
This is a historical record of departures already flown, not a forecast for your flight.
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 97.4% 635
- Cancelled 2.6% 17
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BOS BNA Boston Logan International Airport – Nashville International Airport | 1,514 | 18.6 min | 69.5% | 277 |
| RDU JFK Raleigh-Durham International Airport – John F. Kennedy International Airport | 686 | 10.2 min | 87.0% | 98 |
| CLT LGA Charlotte Douglas International Airport – LaGuardia Airport | 875 | 3.7 min | 90.6% | 55 |
| LGA STL LaGuardia Airport – St. Louis Lambert International Airport | 1,426 | 4.4 min | 90.6% | 53 |
| STL LGA St. Louis Lambert International Airport – LaGuardia Airport | 1,426 | -2.6 min | 88.5% | 52 |
| BNA DCA Nashville International Airport – Ronald Reagan Washington National Airport | 903 | 6.4 min | 87.1% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 94.1% | 0 |
| November 2024 | 24 | 24 | 95.8% | 0 |
| December 2024 | 31 | 31 | 87.1% | 0 |
| January 2025 | 51 | 51 | 92.2% | 0 |
| February 2025 | 46 | 46 | 87.0% | 0 |
| March 2025 | 32 | 32 | 84.4% | 0 |
| April 2025 | 26 | 26 | 80.8% | 0 |
| May 2025 | 30 | 30 | 66.7% | 0 |
| June 2025 | 30 | 28 | 50.0% | 2 |
| July 2025 | 30 | 29 | 55.2% | 1 |
| August 2025 | 9 | 9 | 88.9% | 0 |
| September 2025 | 21 | 21 | 81.0% | 0 |
| October 2025 | 31 | 30 | 83.3% | 1 |
| November 2025 | 28 | 24 | 95.8% | 4 |
| December 2025 | 34 | 33 | 75.8% | 1 |
| January 2026 | 32 | 30 | 83.3% | 2 |
| February 2026 | 27 | 25 | 80.0% | 2 |
| March 2026 | 31 | 30 | 83.3% | 1 |
| April 2026 | 30 | 30 | 53.3% | 0 |
| May 2026 | 31 | 30 | 86.7% | 1 |
| June 2026 | 30 | 30 | 96.7% | 0 |
| July 2026 | 31 | 29 | 86.2% | 2 |